Attachment 41158 Details for Bug 32429 – gl_PointCoord takes no effect

gl_PointCoord takes no effect

point_sprites.c (text/plain), 1.92 KB, created by Hai on 2010-12-15 18:31:15 UTC

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Creator: Hai

Created: 2010-12-15 18:31:15 UTC

Size: 1.92 KB

patch

obsolete

>#define _GNU_SOURCE
>#if defined(_MSC_VER)
>#define bool BOOL
>#define true 1
>#define false 0
>#else
>#include <stdbool.h>
>#endif
>#include <string.h>
>#include <ctype.h>
>#include "piglit-gles2-util.h"
>#include "piglit-egl-gles2-framework.h"
>#include <GLES2/gl2.h>
>
>int piglit_width = 250, piglit_height = 250;
>
>const char *vs_code =
>    "attribute vec4 piglit_Position;\n"
>    "void main()\n"
>    "{\n"
>    "    gl_Position = piglit_Position;\n"
>	"	 gl_PointSize = 8.0;\n"
>    "}\n";
>
>const char *fs_code =
>    "void main()\n"
>    "{\n"
>	"	gl_FragColor = vec4(gl_PointCoord.xy,0.0,1.0);\n"
>    "}\n";
>
>enum piglit_result piglit_display(void)
>{
>	GLboolean pass;
>	GLboolean pass1;
>	GLboolean pass2;
>    GLfloat VexterTemp;
>	int error = 0;
>	GLuint myProgram, myVertex, myFrag;
>	char info[100];
>	
>    myVertex = glCreateShader(GL_VERTEX_SHADER);
>    myFrag = glCreateShader(GL_FRAGMENT_SHADER);
>    myProgram = glCreateProgram();
>	
>    glBindAttribLocation(myProgram, PIGLIT_ATTRIB_POS, "piglit_Position");
>	glShaderSource(myVertex, 1, (const GLchar**)&vs_code,NULL);
>	glShaderSource(myFrag, 1, (const GLchar**)&fs_code,NULL);
>	glCompileShader(myVertex);
>    glCompileShader(myFrag);        
>    glAttachShader(myProgram, myVertex);
>    glAttachShader(myProgram, myFrag);
>    glLinkProgram(myProgram);	
>	glUseProgram(myProgram);
>
>	glViewport(0,0,piglit_width, piglit_height);
>	glClear(GL_COLOR_BUFFER_BIT);
>
>	GLfloat vVertices[] = {0.0f,0.0f,0.0f};
>	glVertexAttribPointer(PIGLIT_ATTRIB_POS,1,GL_FLOAT,GL_FALSE,0,vVertices);
>
>	glEnableVertexAttribArray(PIGLIT_ATTRIB_POS);
>	glDrawArrays(GL_POINTS,0,1);
>
>	const float expected1[] = {0.375,0.375,0.0};
>	pass1 = piglit_probe_rect_rgb(124, 124, piglit_width, piglit_height,  expected1);
>	const float expected2[] = {0.5,0.5,0.0};
>	pass2 = piglit_probe_rect_rgb(125, 125, piglit_width, piglit_height,  expected2);
>	pass = pass1&&pass2;
>
>	return pass ? PIGLIT_SUCCESS : PIGLIT_FAILURE;
>}
>
>
>void
>piglit_init(int argc, char **argv)
>{
>}

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Attachments on bug 32429: 41158

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